This standard specifies the corrosion test methods for metals and other inorganic coatings in storage rooms with or without heating and controlled climate parameters. This standard applies to samples and test pieces of metals, metal coatings, conversion films and other inorganic coatings and their protective packaging or without protective packaging. GB/T 11377-2005 General rules for corrosion testing of metals and other inorganic coatings under storage conditions GB/T11377-2005 standard download decompression password: www.bzxz.net
This standard specifies the corrosion test methods for metals and other inorganic coatings in storage rooms with or without heating and controlled climate parameters. This standard applies to samples and test pieces of metals, metal coatings, conversion films and other inorganic coatings and their protective packaging or without protective packaging.

[CS 25.220.01
National Standard of the People's Republic of China
GB/T 113772005/JS0 4543:1981 GH/T113771889
Metallic and ather inorganic cnatingsGenenal rules forcorrasion tests applied for storage conditions(IS0 4543.1S81.IDT)
2005-t0-12 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2006-01-01 Implementation
Test specimenswww.bzxz.net
Test supervision procedures
Test report
Appendix A (basic material appendix)
Classification and effectiveness evaluation of the conditions and regulations
A/T11377—2005/TSO4543:1981
B/T11377—2005/tS This standard is equivalent to ISO 4543:1981. For the convenience of application, the following modifications have been made to the standard: 1. Use "this standard" instead of "this international standard"; 2. The foreword of the international standard has been cancelled and the standard has been redrafted. This standard recommends GB/T 11377-19698 for other materials that do not care about the expected layer storage conditions. This standard has the following main changes compared with GB/T11377-185: - This standard adds "day":
-) C8/T1.1200G adopts the original limit and replaces it with the new standard according to IS04543, 1981: This standard modifies the "introduction to the test" in B/37199 and uses 1504 "introduction" in the same way.
This standard has adjusted the order of the signature in Chapter b of (15/11377-39) and The content of the band has been modified to make it more complete and clear.
The attached A of this standard is the data list appendix.
This standard was compiled by China Machinery Industry Federation, and the standard is under the jurisdiction of the National Enterprise Development and Non-Gold Network Coverage Technology Association: This standard is issued by: Material Protection Research Institute, Laishan Xinding Technology Co., Ltd., Zhang Guan, Shi Wang, Tu Yaping, Zhizhi, Liu Yilu, and the versions represented by this standard are: GB/T 11377-1985, GB/T11377-2005/IS4543:1981, and the corrosion test under storage conditions is carried out. The date of this standard is small! ) To evaluate the corrosion resistance of materials under different storage conditions; h To compare the corrosion resistance of two or more protective coverings! To determine the type of protective covering, the degree of corrosion resistance and the type of protective packaging; d To investigate the correlation between the test results under given laboratory test conditions and storage conditions. This standard contains detailed information on the effects of high corrosion resistance in storage and the need for testing the specimens. Storage resistance also depends on the temperature and humidity of the environment, as well as the effects of other environmental factors that change frequently, regularly or suddenly in a particular microclimate.
1 Standard GB/T11377-2005/ISO 4543;1981 General rules for corrosion tests on metals and other inorganic coatings under storage conditions
This standard specifies the corrosion test methods for metals and other inorganic coatings in rooms with or without controlled climate conditions.
This standard applies to metal products with coatings, conversion films and other inorganic coatings and their protective packaging or without protective packaging and test pieces.
2 Test specimens
2.1 Types
Three types of test specimens:
A specially prepared test specimen with a protective coating; "A test piece with a protective coating": the test specimen and product parts have or are not protected by packaging, and have or are not protected by gear parts. The test date is determined by the test date. 2.2 Shape and size
In order to minimize the error caused by the effect and to subject it to representative corrosion, the surface area of ​​the test specimen should be as human as possible and should not be less than 5) cm (5 cm maximum 10 cm). If the area is used If the test piece is less than 5) cm, the same sample combination can be combined to achieve the minimum surface area required for the judgment, but the results obtained in this case are not consistent with the results obtained with the samples of the specified minimum area. 2.3 Preparation Before testing, the test piece should be cleaned to remove any contaminants that may affect the properties of the test cover. The method of cleaning will depend on the history of contaminants on the test surface. Any abrasives or agents that may damage the test surface or form a protective film should not be used. If the product has a temporary protective film, no surface cleaning is required. 2.2 Preparation of the test piece 2.5 Marking
The items should be well marked to avoid confusion during the test. The labels should be removed during the entire test process. Durability: If the labels are not marked, it will affect the appearance of the inspection materials. You can choose one of the following methods: \) Non-marking (before covering the gap in the mark [best method 1) Hang a piece of code on the sample. Use a soft non-metallic wire (such as nylon or! :d) When supporting, use a soft non-metallic wire (such as nylon or! :d) The medical oil Kang translation group is reversed The code quantity should be recorded on the test surface (the main side of the test surface), the hole of the label should be punched on the bottom edge of the sample, and the label should not be in contact with the sample. The sample marking can be expressed in numbers and letters to indicate the following: the type of coating!
b) the type of packaging or treatment
) if the temporary protection is used, the type of temporary protection layer should be indicated: GR/I11377-2005/ISO4543:1981;
e? The place and conditions of storage.
The marking should be as clear as possible and the content should be consistent with the required purchase rate. 2. 6 Quantity
In the batch test, the number of samples to be used for the evaluation of the physical properties of the material shall be determined by the number of samples that are expected to be taken during the test period. The number of samples used for the evaluation of the material shall not exceed 1 year per test cycle, and at least 53 days per day. If the surface area of ​​the sample is small, a larger number of samples shall be taken. 2.7 Standard samples
It is usually necessary to place standard samples of accumulated alloys (such as zinc, copper or low alloy steel) before testing the individual samples in order to shorten the evaluation process: The corrosion recovery number of the standard sample in each storage rate is known. The standard sample should be stored in the specified conditions for 2, 8 days. 2. Storage of the sample
Before the test, the sample should be stored in an environment with air conditioning, temperature control, and humidity not more than 50%, or the sample should be sealed in a desiccator, or tightly packed in an evacuated plastic container containing a dry dye. 3. Storage of test samples
3.] Corrosion environment
The composition of the test sample should be consistent with or similar to the actual sample stored in the test room. The test should evaluate the factors affecting the storage room itself.
The various factors affecting the degree of corrosion of the type test are different. These factors may be any one or more of the following:! b) atmospheric temperature and its fluctuations
b) atmospheric temperature and its filterability:
) pollutants in the air, including chemical pollutants (such as various gases and vapors) and physical activities (such as dust, smoke and state);
) the thickness of the sample and its passive value;
c) the surface quality of the sample!
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g) the corrosiveness of the material in contact with the test table 1) the type of packaging or state disposal, quality and its impermeability. Appendix A proposes appropriate monitoring rates for these factors. 3.2 Storage and storage methods
3.2.1 Location
The samples should be placed in a specific area for temporary storage (such as a shelf) to avoid twisting the samples, which can be divided and measured without changing the environmental conditions.
The sample should be placed in a location that will not be exposed to heat sources and where ventilation is available. The storage environment should be dry and the floor should be clean with dust-absorbing materials.
3.2.2 Thick racks
The racks used for placing and packing samples, including the test racks for placing and packing samples (hereinafter referred to as test racks) and the racks for placing and packing samples without packaging (hereinafter referred to as test racks, the structure of the sample racks and the racks are not defined separately, and shall also meet the following requirements: =) The materials and materials used shall not produce corrosion on the samples: 1) If the rack is made of wood, the moisture content of the material shall not exceed 1, and it shall not emit corrosion-resistant chemical gases; the rack shall keep the samples from moving or swinging. Unless otherwise specified, the samples on the racks shall be as far away from the ground as possible and at least 5m away from the ground. G6/T11377-2005/1504643;1981) If the rack is made of deep-seated wood, it is necessary to minimize the effect of the material's corrosion resistance on the metal and the surface protective layer of the metal.
3.2. 3 The placement and operation of the measuring instruments and test equipment shall be in accordance with their instructions for use and promotion. If the samples are packed, especially before packaging in boxes, the internal and external humidity should be measured:
The measuring plate should record the environmental conditions automatically, and the display instrument should be used to display the relative strength of the humidity. b) The instrument that measures and records the sulfur dioxide content, atmospheric recovery and chlorine content is required. 3.2.4 The samples should be exposed to the actual storage conditions in the storage room. If the samples are new products without protective agents or packaging, they should be placed according to the recognized methods for storing such products:
The direction of each sample should not be in direct contact with any material that may affect the test. For this purpose, the specimens shall be fixed on the specimen holder, clamp or other material that is not affected by the test. The contact area between the specimen and the tip shall be as small as possible to facilitate observation of the specimen surface:
to facilitate sampling:
to prevent contamination of the specimen (such as wind) and damage: d)
) The specimens shall be placed in a uniform manner in all directions. 4 Test sequence
4.1 Placement of specimens
Draw the test locations and mark the test locations. If the test plan requires a group or sample to be returned at regular intervals, place them in the order in which they are removed. For samples that require periodic maintenance or energy monitoring, the test conditions can be extended to form a complete storage. If the test is not carried out in a certain period of storage, the test conditions should be as similar as possible to ensure comparability of the results. In this regard, special attention should be paid to the design of the channel, frame size and structure of the test device. If it is necessary to compare the test conditions of the test metal, slow layer and test piece at different times or locations, the test samples should be compared with the corrosion severity of the various environments, but the test samples should be similar to the test samples.
4.2 Duration of test
The total test period is determined according to the test size and sample type. In principle, the test should be carried out continuously until the substrate shows the most severe corrosion. The samples need to be taken out regularly and the sampling intervals are determined by the sample type, number and test month: the number of regular tests is determined by the test object, and the recommended storage period is 1 week, 2 weeks, 2 months, 3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 18 months and 60 months. 4.3 Evaluation of test results If conditions permit, the storage temperature of the samples can be determined in a small environment. If it is necessary to transfer the samples to other places for evaluation, the samples should be protected from moisture and fingerprints during the transfer process, and the samples should be protected from rapid transfer from a cold environment to a hot and humid environment, and the samples should be protected from changes during the transfer process. Unless otherwise specified, the changes in the samples should be evaluated regularly according to the test in 4.2 during the entire storage period. During the first month of the test, the evaluation should be carried out every week or every two weeks. The sample should be used within one month after the exposure test. During this time, the test results should be evaluated according to the test purpose and plan. Unless otherwise specified, the evaluation of the metal layer test station should be carried out according to the relevant standard assumptions. CB/I 11377-2005/ISO 4543:19814.4 Record of separation factors Before the test, the type of material to be stored in the test should be compared with the type of material to be stored. During the test, the monitoring and recording of the material properties listed in the attached file should be recorded. 5. Record of test results
The observations and evaluation results of each sample’s corrosion changes shall be recorded in detail on a properly designed card. The record card shall include the following items:
Test abbreviation or mark:
b) Test date;
Pre-test specifications;
Expiry date of each evaluation:
Each evaluation shall be specifically described. Changes in the surface appearance of each sample shall be measured regularly, and changes in mass increase or decrease or other physical properties shall be measured regularly. If 1, it is possible to take photographs of the samples before, during and after the test; use the test scale, photographs or standard drawings preserved as specified in 2.8 to evaluate the corrosion level by visual inspection or other methods; Evaluation of packaging or packaging.
5 Test report
The test report shall include the following contents:
Test specifications
1) Information on the specific production of each component (see 2.1) Description of base material:
Type of coating. Material and actual thickness of the coating; 3) Selection of base material: 1) Preparation method of coating (addition) Pre-plating (removal) treatment method;
Test appearance and basic properties of the coating, such as porosity, texture, elongation; The list includes the following: 1) the materials and packaging methods used to evaluate these properties: 2) the actual performance of the coating layer, and the test methods used to evaluate these properties and the original values ​​of these properties: 3) the coating surface preparation and cleaning methods; 4) the materials used for the installation; 5) the test system information: 6) the exposure location; 7) the test duration; 8) the test volume or solidification method; 9) the test record results of the four elements such as the drop strength (see record 4). The special test column shall list the inspection period, separation change evaluation system according to the provisions of 4.5, including the description of the test method and the number of channels. There is also a need for special test conditions, format and packaging conditions, air humidity element, relative humidity and its relative humidity and its change, humidity degree, freezing degree, cumulative resistance to each mouth, daily calculation period, and complete test items. (Informative Appendix) TB/T 11377--2005/150-1543.1981 Type and value of ionizing agents under storage conditions Type and magnitude of ionizing agents Detailed determination Weekly determination of natural substances Observation of natural substances Daily, monthly and annual average values ​​Maximum and minimum values ​​Monthly and monthly total values ​​Chemical reduction and total natural substances within one month4. The specimens should be subjected to the actual storage conditions. If the specimens are new or packaged products, they should be placed in accordance with the recognized methods for storing such products: 1) The specimens should not be in direct contact with any material that may affect the test. For this purpose, the specimens should be fixed in a container, clamp or clip made of non-recyclable materials that are not likely to affect the test. The contact area between the specimen and the tip should be as small as possible to facilitate observation of the specimen surface: 2) To facilitate sampling: 3) To prevent contamination of the specimen (such as windshield effect) and damage: 4) The conditions in which the specimens are placed should be sensitive to air flow from all directions. 4.1 Placement of Specimens
Plot the test locations and mark the locations for the tests. If the test plan requires a minimum of periodic testing of a group of specimens, place them in the order in which they are removed. For specimens that require periodic testing or energy storage, the test conditions may be extended to form a complete storage arrangement. If the tests are not carried out in the same storage, the conditions should be as similar as possible to ensure comparability of the results. In this regard, special considerations should be given to the design of the channels, frames and structures used in the test arrangement. If it is to be compared with the test installations of test metals, coatings and specimens at different times or locations, the corrosion severity of the various environments should be compared with the test specimens, provided that the test specimens are similar to the test specimens.
4.2 Test duration
The total test period is determined according to the test purpose and the sample type. In principle, the test should be carried out continuously from the time when the most stubborn bacteria appear on the substrate. The samples need to be taken out regularly, and the sampling interval is determined by the sample type, the number of months and the test format: the number of regular tests is determined by the durability of the test sample. The recommended storage period is 1 week, 2 weeks, 2 months, 3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 18 months to 60 months. 4.3 Evaluation of test results
If conditions permit, the storage of samples can be determined in a small storage environment. If it is necessary to transfer the test specimens to other places for evaluation, the specimens should be protected from moisture and fingerprints during the transfer process. The specimens should be protected from rapid transfer from a cold environment to a hot and humid environment and the specimens should be protected from changes in the test environment during the transfer process. Unless otherwise specified, the specimens should be evaluated for changes in corrosion according to the test method in 4.2 at regular intervals throughout the test period. During the first month of the test, the evaluation should be carried out once a week or every two weeks. The specimens should be used within one month after the test. During this time, the selected reagents should be stored in a suitable manner. The evaluation method of the results should be determined by the test purpose and program. Unless otherwise specified, the assessment of the flexibility of the metal layer test station shall be carried out according to the relevant standard assumptions. CB/I 11377-2005/ISO 4543:19814.4 Record of separation factors Before the test, the type of material to be tested shall be compared with the type of material to be tested. During the test, the material properties shall be monitored and recorded as listed in the Appendix. 5. Record of test results
The observations and evaluation results of each sample’s corrosion changes shall be recorded in detail on a properly designed card. The record card shall include the following items:
Test abbreviation or mark:
b) Test date;
Pre-test specifications;
Expiry date of each evaluation:
Each evaluation shall be specifically described. Changes in the surface appearance of each sample shall be measured regularly, and changes in mass increase or decrease or other physical properties shall be measured regularly. If 1, it is possible to take photographs of the samples before, during and after the test; use the test scale, photographs or standard drawings preserved as specified in 2.8 to evaluate the corrosion level by visual inspection or other methods; Evaluation of packaging or packaging.
5 Test report
The test report shall include the following contents:
Test specifications
1) Information on the specific production of each component (see 2.1) Description of base material:
Type of coating. Material and actual thickness of the coating; 3) Selection of base material: 1) Preparation method of coating (addition) Pre-plating (removal) treatment method;
Test appearance and basic properties of the coating, such as porosity, texture, elongation; The list includes the following: 1) the materials and packaging methods used to evaluate these properties: 2) the actual performance of the coating layer, and the test methods used to evaluate these properties and the original values ​​of these properties: 3) the coating surface preparation and cleaning methods; 4) the materials used for the installation; 5) the test system information: 6) the exposure location; 7) the test duration; 8) the test volume or solidification method; 9) the test record results of the four elements such as the drop strength (see record 4). The special test column shall list the inspection period, separation change evaluation system according to the provisions of 4.5, including the description of the test method and the number of channels. There is also a need for special test conditions, format and packaging conditions, air humidity element, relative humidity and its relative humidity and its change, humidity degree, freezing degree, cumulative resistance to each mouth, daily calculation period, and complete test items. (Informative Appendix) TB/T 11377--2005/150-1543.1981 Type and value of ionizing agents under storage conditions Type and magnitude of ionizing agents Detailed determination Weekly determination of natural substances Observation of natural substances Daily, monthly and annual average values ​​Maximum and minimum values ​​Monthly and monthly total values ​​Chemical reduction and total natural substances within one month4. The specimens should be subjected to the actual storage conditions. If the specimens are new or packaged products, they should be placed in accordance with the recognized methods for storing such products: 1) The specimens should not be in direct contact with any material that may affect the test. For this purpose, the specimens should be fixed in a container, clamp or clip made of non-recyclable materials that are not likely to affect the test. The contact area between the specimen and the tip should be as small as possible to facilitate observation of the specimen surface: 2) To facilitate sampling: 3) To prevent contamination of the specimen (such as windshield effect) and damage: 4) The conditions in which the specimens are placed should be sensitive to air flow from all directions. 4.1 Placement of Specimens
Plot the test locations and mark the locations for the tests. If the test plan requires a minimum of periodic testing of a group of specimens, place them in the order in which they are removed. For specimens that require periodic testing or energy storage, the test conditions may be extended to form a complete storage arrangement. If the tests are not carried out in the same storage, the conditions should be as similar as possible to ensure comparability of the results. In this regard, special considerations should be given to the design of the channels, frames and structures used in the test arrangement. If it is to be compared with the test installations of test metals, coatings and specimens at different times or locations, the corrosion severity of the various environments should be compared with the test specimens, provided that the test specimens are similar to the test specimens.
4.2 Test duration
The total test period is determined according to the test purpose and the sample type. In principle, the test should be carried out continuously from the time when the most stubborn bacteria appear on the substrate. The samples need to be taken out regularly, and the sampling interval is determined by the sample type, the number of months and the test format: the number of regular tests is determined by the durability of the test sample. The recommended storage period is 1 week, 2 weeks, 2 months, 3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 18 months to 60 months. 4.3 Evaluation of test results
If conditions permit, the storage of samples can be determined in a small storage environment. If it is necessary to transfer the test specimens to other places for evaluation, the specimens should be protected from moisture and fingerprints during the transfer process. The specimens should be protected from rapid transfer from a cold environment to a hot and humid environment and the specimens should be protected from changes in the test environment during the transfer process. Unless otherwise specified, the specimens should be evaluated for changes in corrosion according to the test method in 4.2 at regular intervals throughout the test period. During the first month of the test, the evaluation should be carried out once a week or every two weeks. The specimens should be used within one month after the test. During this time, the selected reagents should be stored in a suitable manner. The evaluation method of the results should be determined by the test purpose and program. Unless otherwise specified, the assessment of the flexibility of the metal layer test station shall be carried out according to the relevant standard assumptions. CB/I 11377-2005/ISO 4543:19814.4 Record of separation factors Before the test, the type of material to be tested shall be compared with the type of material to be tested. During the test, the material properties shall be monitored and recorded as listed in the Appendix. 5. Record of test results
The observations and evaluation results of each sample’s corrosion changes shall be recorded in detail on a properly designed card. The record card shall include the following items:
Test abbreviation or mark:
b) Test date;
Pre-test specifications;
Expiry date of each evaluation:
Each evaluation shall be specifically described. Changes in the surface appearance of each sample shall be measured regularly, and changes in mass increase or decrease or other physical properties shall be measured regularly. If 1, it is possible to take photographs of the samples before, during and after the test; use the test scale, photographs or standard drawings preserved as specified in 2.8 to evaluate the corrosion level by visual inspection or other methods; Evaluation of packaging or packaging.
5 Test report
The test report shall include the following contents:
Test specifications
1) Information on the specific production of each component (see 2.1) Description of base material:
Type of coating. Material and actual thickness of the coating; 3) Selection of base material: 1) Preparation method of coating (addition) Pre-plating (removal) treatment method;
Test appearance and basic properties of the coating, such as porosity, texture, elongation; The list includes the following: 1) the materials and packaging methods used to evaluate these properties: 2) the actual performance of the coating layer, and the test methods used to evaluate these properties and the original values ​​of these properties: 3) the coating surface preparation and cleaning methods; 4) the materials used for the installation; 5) the test system information: 6) the exposure location; 7) the test duration; 8) the test volume or solidification method; 9) the test record results of the four elements such as the drop strength (see record 4). The special test column shall list the inspection period, separation change evaluation system according to the provisions of 4.5, including the description of the test method and the number of channels. There is also a need for special test conditions, format and packaging conditions, air humidity element, relative humidity and its relative humidity and its change, humidity degree, freezing degree, cumulative resistance to each mouth, daily calculation period, and complete test items. (Informative Appendix) TB/T 11377--2005/150-1543.1981 Type and value of ionizing agents under storage conditions Type and magnitude of ionizing agents Detailed determination Weekly determination of natural substances Observation of natural substances Daily, monthly and annual average values ​​Maximum and minimum values ​​Monthly and monthly total values ​​Chemical reduction and total natural substances within one month2. ... 5. Record of test results
The observations and evaluation results of each sample’s corrosion changes shall be recorded in detail on a properly designed card. The record card shall include the following items:
Test abbreviation or mark:
b) Test date;
Pre-test specifications;
Expiry date of each evaluation:
Each evaluation shall be specifically described. Changes in the surface appearance of each sample shall be measured regularly, and changes in mass increase or decrease or other physical properties shall be measured regularly. If 1, it is possible to take photographs of the samples before, during and after the test; use the test scale, photographs or standard drawings preserved as specified in 2.8 to evaluate the corrosion level by visual inspection or other methods; Evaluation of packaging or packaging.
5 Test report
The test report shall include the following contents:
Test specifications
1) Information on the specific production of each component (see 2.1) Description of base material:
Type of coating. Material and actual thickness of the coating; 3) Selection of base material: 1) Preparation method of coating (addition) Pre-plating (removal) treatment method;
Test appearance and basic properties of the coating, such as porosity, texture, elongation; The list includes the following: 1) the materials and packaging methods used to evaluate these properties: 2) the actual performance of the coating layer, and the test methods used to evaluate these properties and the original values ​​of these properties: 3) the coating surface preparation and cleaning methods; 4) the materials used for the installation; 5) the test system information: 6) the exposure location; 7) the test duration; 8) the test volume or solidification method; 9) the test record results of the four elements such as the drop strength (see record 4). The special test column shall list the inspection period, separation change evaluation system according to the provisions of 4.5, including the description of the test method and the number of channels. There is also a need for special test conditions, format and packaging conditions, air humidity element, relative humidity and its relative humidity and its change, humidity degree, freezing degree, cumulative resistance to each mouth, daily calculation period, and complete test items. (Informative Appendix) TB/T 11377--2005/150-1543.1981 Type and value of ionizing agents under storage conditions Type and magnitude of ionizing agents Detailed determination Weekly determination of natural substances Observation of natural substances Daily, monthly and annual average values ​​Maximum and minimum values ​​Monthly and monthly total values ​​Chemical reduction and total natural substances within one month2. ... 5. Record of test results
The observations and evaluation results of each sample’s corrosion changes shall be recorded in detail on a properly designed card. The record card shall include the following items:
Test abbreviation or mark:
b) Test date;
Pre-test specifications;
Expiry date of each evaluation:
Each evaluation shall be specifically described. Changes in the surface appearance of each sample shall be measured regularly, and changes in mass increase or decrease or other physical properties shall be measured regularly. If 1, it is possible to take photographs of the samples before, during and after the test; use the test scale, photographs or standard drawings preserved as specified in 2.8 to evaluate the corrosion level by visual inspection or other methods; Evaluation of packaging or packaging.
5 Test report
The test report shall include the following contents:
Test specifications
1) Information on the specific production of each component (see 2.1) Description of base material:
Type of coating. Material and actual thickness of the coating; 3) Selection of base material: 1) Preparation method of coating (addition) Pre-plating (removal) treatment method;
Test appearance and basic properties of the coating, such as porosity, texture, elongation; The list includes the following: 1) the materials and packaging methods used to evaluate these properties: 2) the actual performance of the coating layer, and the test methods used to evaluate these properties and the original values ​​of these properties: 3) the coating surface preparation and cleaning methods; 4) the materials used for the installation; 5) the test system information: 6) the exposure location; 7) the test duration; 8) the test volume or solidification method; 9) the test record results of the four elements such as the drop strength (see record 4). The special test column shall list the inspection period, separation change evaluation system according to the provisions of 4.5, including the description of the test method and the number of channels. There is also a need for special test conditions, format and packaging conditions, air humidity element, relative humidity and its relative humidity and its change, humidity degree, freezing degree, cumulative resistance to each mouth, daily calculation period, and complete test items. (Informative Appendix) TB/T 11377--2005/150-1543.1981 Type and value of ionizing agents under storage conditions Type and magnitude of ionizing agents Detailed determination Weekly determination of natural substances Observation of natural substances Daily, monthly and annual average values ​​Maximum and minimum values ​​Monthly and monthly total values ​​Chemical reduction and total natural substances within one month
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